Nematodes 2 Flashcards
another name for syngamosis
gapeworm disease
cause of syngamosis
syngamus trachea
morphology of syngamus female
0.5-3cm long
reddish
cup shaped buccal capsule
morphology of syngamus male
0.5cm long
whitish with large shallowbuccal capsule
predilection site of syngamus
trachea
infection of syngamus
with larvated eggs, L3 or paratenic host
life cycle of syngamus
direct
PE2: L3 –> liver –> lungs –> trachea
host of syngamus
domestic fowl and game birds
turkey
pheasant
partridge
clinical signs of syngamus
head shaking
sneezing
dyspmoea
asphyxia or suffocation
subcut emphysema
faecal exam of syngamus
flotation
eggs of syngamus
70-100um long
ellipsoidal
thin shelled
opeculum at both ends
8-16 cells stage
paratenic host of syngamus
earthworm
snails
necropscopy of syngamus
wotm pairs
granulomas in trachea
tracheitis with excess of foamy, bloody mucus
petechia
haemorrhages
ordema
vicariant emphysema
bronchonpneumonia in lungs
another name for anclyostomatidosis
hookworm disease of carnivores
cause of anclyostomatidosis
a. caninum
a. tubaeforma
a. braziliense
unicaria stenocephala
morphology of anclyostomatidosis
0.3-3cm in length
red colour
anterior end of body is bent dorsally - hook like
large buccal capsule with paired teeth or chitinous cutting plates
eggs of anclyostomatidosis
strongyle type
predilection site of anclyostomatidosis
small intestine
life cycle of anclyostomatidosis
direct
ancylostomosis of carnivores
ancylostoma caninum
a. tubaeforme
a. braziliense
uncinaria stenocephala
morphology of ancylostoma caninum
3-3 teeth on plate at the dorsal part of the mouth opening
route of infection of ancylostoma caninum
transplacental
galactogen
percutan from ground
host of ancylostoma caninum
dogs
host of a. tubaeforme
cat
morphology of a. tubaeforme
3-3 teeth on the plate of the dorsal part of the mouth opening
route of infection of a. tubaeforme
percutan from the ground po
host of Uncinaria stenocephala
dog
cats
morphology of Uncinaria stenocephala
toothless plate on dorsal part of the mouth opening
no tooth on ventral part of buccal cavity
route of infection of Uncinaria stenocephala
po from ground
clinical signs of ancylostoma
asymptomatic
anaemia
bloody faeces
loss of condition
diarrhoea
circulatory collapse
dermatitis
agalactia
skin lesions in nursing bitches
resp signs
eggs of ancylostoma
55-95um long
thin shelled
4-8 cell stage
necroscopy of ancylostoma
anaemia
haemorrhages in jejunum and ileum
hookworm diseases of ruminants
bunostomum phlebotomum
b. trigonocephalum
b. phlebotomum host
cattle
b. trigonocephalum host
sheep
goat
wild ru
clinical signs of bunostomum
asymptomatic
anaemia
diarrhoea with mucus and blood
cachexy
pruritus
dermatitis
mophology of bunostomosis
cup shaped buccal capsule
2 ventrally cutting plates
eggs of bunostomum
80-105um
thin shelled
4-8 cell stage
necroscopy of bunostomum
haemorrhages in duodenum
causes of trichostrongylidosis
haemonchus contortus
teladorsagia cicumcincta
ostertagia ostertafi
trichostrongylus axei
t. colubriformis
cooperia punctata
c. concophora
c. curticei
nematodirus helvetianus
n. filicollis
n. spathiger
n. battus
morphology of haemonchus
1-3cm long
females are pied
white ovaries being spirally wound around the red intestine giving appearance of a barbers pole
-hypobiotic in glands of abomasu
morphology of ostertagia, teladorsagia
1cm long
reddish-brown
tiny cervical papillae
hypobiotic in glands of abomasum
morphology of trichostrongylus
<1cm long
pinkish
swollen head due to small cephalic vesicle
will moult in mucosa of the small intestine
morphology of nematodirus
1-2.5cm long
the anterior half of worms thinner than posterior
small striated cephalic vesicle
long spicules
tips fused together and doubled bursal rays in males
will moult in mucosa of the small intestine
predilection site of h. placei
abomasum of cattle
predilection site of tr. axei
abomasum of cattle
stomach of horse and donkey
predilection site of h. contortus
abomasum of sheep and goat
predilection site of teladorsagia circumcincta
abomasum of sheep and goat
predilection site of tr. axei
abomasum of sheep and goat
predilection site of c. punctata
small intestine of cattle
predilection site of c. oncophora
small intestine of cattle
predilection site of n. helvetianus
small intestine of cattle
predilection site of tr. colubriformis
small intestine of sheep and goat
predilection site of c. oncophora
small intestine of sheep and goat
predilection site of c. curticei
small intestine of sheep and goat
predilection site of n. filicollis
small intestine of sheep and goat
predilection site of n. spathiger
small intestine of sheep and goat
predilection site of n. battus
small intestine of sheep and goat
life cycle of trichostrongylidosis
direct
hosts of trichostrongylidosis
domestic and wild ru
cooperia morphology
swollen head dye to cephalic vessicle
watch spring posture
prepatent period of trichostrongylidosis
2-4 weeks
prepatent period of osteragia spp
8-16days
acute haemonchosis clinical signs
anaemia
dark coloured faeces
submandibular oedema
weakness
ostertagiosis clinical signs
profuse, watery diarrhoea with putrid smell
dehydration
loss of appetite
weight and production
weakness
trichostrongylosis, cooperiosis, nematodirosis clinical signs
severe, black, haemorrhagic diarrhoea
trichostrongyle type eggs
60-110um long
thin shelled
8-16 cell stage
necroscopy findings of trichostrongylidosis
haemorrhagic gastritis
hyperaemic abomasa and small intestinal mucosa
villous atrophy
erosion of mucosa
nodules
worms in abomasum or small intestine
cause of hyotrongylosis
hyostrongylus rubidus
morphology of hyostrongylus rubidus
0.4-1cm long
thin
reddish with small cephalic vesicle
predilection site of hyostrongylus rubidus
attached to the gastric mucosa
embedded in catarrhal exudate
life cycle of hyostrongylus rubidus
direct
hosts of hyostrongylus rubidus
pig
wild boar
rabbit
guinea pig
clinical signs of hyostrongylus rubidus
asymptomatic
eggs of hyostrongylus rubidus
strongyle type eggs
necropscopy of hyostrongylus rubidus
hypertrophic, ulcerative acute gastritis
chronic cattarhal croupous diphthertic gastritis
thickened stomach wall
another name for gizzard worm disease
amidostomosis
cause of amidostomosis
aminodostomum anseris
morphology of aminodostomum anseris
1-2.5cm long
bright red
shallow buccal capsule
predilection site of adults of aminodostomum anseris
under horny lining of the gizzard on mucosa
close to junction with proventriculus
life cycle of aminodostomum anseris
direct
L1 develops in water
prepatent period of aminodostomum anseris
12-21 days
hosts of aminodostomum anseris
gooslings
ducklings
young aquatic fowls
clincal signs of aminodostomum anseris
apathy
anaemia
emaciation
diarrhoea
eggs in aminodostomum anseris
100um long
ellipsoidal
thin shelled
32 cell or morula stage
necroscopy finding of aminodostomum anseris
horny lining of gizzard is softened or loosened
dark red fold or cream like catarhal inflammation and haemorrhages on mucosa of the gizzard